Combining a few PDFs into one file usually means opening each one, copying pages across by hand, and hoping the order doesn't get scrambled along the way. pdfCraft's merge tool lets you merge or combine PDF files into one online for free — drop them in, set the order, and download a single combined PDF.
How to combine PDF files into one: Step 1 — upload your PDFs
Go to Merge PDF and add the files you want to combine. No account is needed. On the free plan you can merge up to 10 files at a time, up to 50 MB each.
Step 2: Set the order
Use the up and down controls to arrange the files in the order you want them to appear in the final document — the first file in the list becomes the start of the merged PDF.
Step 3: Download your merged PDF
Click merge and download the result: one file, in the order you set, with every page from every source file included.
A couple of things worth knowing
- Pages are copied as-is. Merging doesn't re-render or recompress anything, so the original quality and formatting of each file carries straight through.
- There's a combined page limit. On the free plan, the merged file can't be more than 50 pages total, across all the files you combine — not 50 pages per file. Pro removes this limit.
Frequently asked questions
Is it free to merge PDFs online?
Yes. Merging is free with no account needed, within the free limits: up to 10 files per merge, 50 MB per file, a combined 50 pages, and 25 merges a day per device.
How many PDFs can I merge at once?
Up to 10 files on the free plan. Pro raises that to 50 files per merge.
Can I change the order of the files before merging?
Yes. Move any file up or down in the list before you merge — the final order matches what you set.
Is there a page limit?
Yes, on the free plan: the combined output can't exceed 50 pages across every file you merge. Pro has no page limit.
Will merging work if one of my files is password-protected?
No — pdfCraft rejects password-protected PDFs when merging, since it can't read pages it can't open. Remove the password first with the unlock tool — see How to Remove a Password from a PDF — then merge the unlocked copy.
Can I edit the merged file afterward?
Yes — open the merged PDF in the editor to fix text, add pages, or make other changes. See How to Edit Text in a PDF Online.
Are my files safe when I merge PDFs online?
Yes — your files are sent over an encrypted (HTTPS) connection to be merged, and they're deleted after you download the result. Nothing is stored or shared.
Can I merge PDFs on my phone?
Yes. pdfCraft runs in your mobile browser the same way it does on desktop — no app to install. Upload your files, set the order, and download the merged copy.
What if my files add up to more than 50 pages?
On the free plan, you can merge in batches that each stay under 50 pages — but that gives you multiple output files, not one. To combine everything over 50 pages into a single file, you'll need Pro, which has no page limit.
Once your file's merged, you might want to compress it if it's too large to email — see How to Compress a PDF — or split it if you need to pull specific pages back out later.
Merge PDF files now — free, no account needed.